P-Block Elements Ques 405
Question: Helium was discovered by
Options:
A) Crooks
B) Rutherford
C) Frankland and Lockyer
D) Dorn
Show Answer
Answer:
Correct Answer: C
Solution:
All noble gases except radon occur in the atmosphere. In an atmosphere, ~1% are noble gases among which argon constitutes more. Helium and neon are found from radioactive origins. xenon and radon are rarest elements. Helium was discovered by Frankland and Lockyer in 1868.
